Empirical formula (Hill's system for organic substances):
C17H20O3
Molar/atomic mass: 272.3389
LD50 (mg/kg):
0.76 (mice, intraperitoneal)
References:
Uwai K., Ohashi K., Takaya Y., Ohta T., Tadano T., Kisara K., Shibusawa K., Sakakibara R., Oshima Y. Exploring the Structural Basis of Neurotoxicity in C17-Polyacetylenes Isolated from Water Hemlock / Journal of Medicinal Chemistry. - 2000. - Vol. 43, No. 23. - pp. 4508-4515